Question

Rishi bought a bookmark measuring 4cm and 5 cm . what is the perimeter of the book mark
1. 15
2. 28
3 . 18
4. 14​

Answer 1

Answer:

18 option (3)

Step-by-step explanation:

$\pink{\ggg}\red{\underline{Question:-}}$

Rishi bought a bookmark measuring 4cm and 5 cm . what is the perimeter of the book mark?

$\pink{\ggg}\red{\underline{Solution:-}}$

First, it is a rectangle because measures are different

We know that, perimeter of rectangle formula

$\boxed{perimeter = 2(length + breadth)}$

$\Rightarrow p = 2(5+4)$

$\Rightarrow p = 2(9)$

$\Rightarrow p=18$

$\bold{perimeter\: of\: book \:mark = 18cm}$

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

Rishi bought a bookmark measuring 4cm and 5 cm . The perimeter of the book mark

1. 15

2. 28

3 . 18

4. 14

EVALUATION

Here it is given that Rishi bought a bookmark measuring 4cm and 5 cm

Length = 5 cm

Breadth = 4 cm

Hence the required perimeter

= 2 ( Length + Breadth )

= 2 × ( 5 + 4 ) cm

= 2 × 9 cm

= 18 cm

FINAL ANSWER

Hence the correct option is 3 . 18

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